Diamond Gravers are
non-rotating tools intended for scratch engraving of trophy brass and aluminum.
They are available with tip angles between 90° and
150°. The material being engraved determines the angle of cutter to use. The
softer the material, the wider the angle needed. If the
angle is too sharp (lower number), the graver may dig in and cause a
rough cut. Also, the pressure must be adjusted to suit the
particular material being engraved.

The Diamond Drag
adapter comes with a 120 degree diamond tip for drag engraving into all
types of metal stock. The adapter screws onto the end of the
spindle's micrometer, replacing the nosecone. It fits on most spindles and allows
simple and solid mounting for diamond scratch engraving.
Spindle bearing strain is totally eliminated with this piece of engraving
equipment. Replacement tips are also available.